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Current identification:
Original Description
Shell thorny, pear-shaped, with slight collar stricture. Length of the two joints = 3: 16, breadth = 4: 20. Cephalis hemispherical, vith a conical horn of twice the length. Thorax inflate, ovate, truncate at both poles, with regular, circular pores, twice as broad as those of the thorax. Mouth constricted, flat, half as broad as the thorax.
Cephalis 0.03 long, 0.04 broad; thorax 0.12 to 0.16 long, 0.16 to 0.2 broad.
Editors' Notes
There was no illustration of this species in Haeckel (1887)
Stratigraphic information for LM 21 from Riedel, 1959, p.287
Haeckel, E (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the year 1873-1876, Zoology. 18: 1-1803. gs Riedel, W. R. (1959). Oligocene and Lower Miocene Radiolaria in tropical Pacific sediments. Micropaleontology. 5(3): 285-302. gsReferences:
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Sethocyrtis diomedis compiled by the radiolaria@mikrotax project team viewed: 7-3-2021
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